Digi MIL-1225LS Installation Manual
MIL-1225LS
1000BASE-LX to 1000BASE-SX
Single-mode to Multi-mode
Media Converter
PWR1
PWR2
5 VDC
5 VDC
1.5 A
1.5 A
MIL•1225LS
Gigabit Ethernet
1000BASE-LX to 1000BASE-SX
Single-mode to Multi-mode
Media Converter
SMF Port
TX RX TX RX
MMF Port
SC ConnectorSC Connector
Installation Guide
This guide includes the following information:
“
Introduction” on page 2
“Installation” on page 2
“Theory of Operation” on page 3
PWR1
PWR2
SMSD
MMSD
“Indicators” on page 3
“Specifications” on page 4
“Legal” on page 6
Doc #: 90000091 Rev. A
Install Guide
About this Manual
This manual covers the MIL- 1225LS gigabit converter. The terms “MIL-1225LS”
and “converter” are used throughout this document to describe the device.
Introduction
The MIL-1225LS is a 1000 Mbps, gigabit Ethernet device that converts short-wave,
multi-mode fiber optic signals to long-wave, single-mode fiber optic signals (and
vice versa). The device has two SC connectors:
Port
•
SM
•
MM Port
(1300 nm single-mode fiber)
(850 nm multi-mode fiber)
The MIL-1225LS is a stand-alone device, and it has dual-redundant power
supplies for better reliability.
Packaging Contents
The MIL-1225LS package contains the following:
• MIL-1225LS multi-mode to single-mode fiber converter
• Power supply adapter (one)
• Installation guide
Features
• Compact form-factor
• Power supply adapter
• Diagnostic LEDs
Installation
1. Connect an SC-type, single-mode cable to the
2. Connect an SC-type, multi-mode cable to the
SMF
MMF
Port on the MIL-1225LS.
Port on the device.
Note:
A hybrid cable is recommend to compensate for the DMD (Differential Mode Delay) issue
associated with gigabit speeds and some multi-mode fibers.
3. Connect a power cable to PWR1 . A second, optional power supply may be
connected to the back-up power jack ( PWR2
4. Supply power to the converter and make sure the PWR1 (and PWR2 if
applicable) LED(s) illuminates.
Model: MIL-1225LS Media Converter 2
) to offer redundant power.
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